Pen



FIG. 1 is a front elevational view of a pen showing my new design;

FIG. 2 is a left side elevational view with a portion of the writing tipbeing broken away and omitted for convenience of illustration, theopposite side being a mirror image thereof;

FIG. 3 is a rear elevational view of FIG. 1;

FIG. 4 is a top plan view of the upper end of the pen taken along line4--4 of FIG. 1; and

FIG. 5 is a bottom plan view of the bottom end of the pen taken alongline 5--5 of FIG. 1.

The ornamental design for a pen, as shown and described.